Given as a sign of full approval.  Derived from the voting system on Threadless, it's become a show of love for a remark, design, person, etc.  Primary use is in the Community Forum, but could extend to the "real" world.
Blog entry:  Here's a picture of me with my new mohawk!  I may end up losing my job.. but doesn't it look awesome!?!
Comment: $5.
Comment: $5.
by Rock Deputy July 29, 2008
 Get the $5mug.
Get the $5mug. Refering to Highway 5 that stretches from the California/Mexican border in San Diego, all the way up to Canada.
by all4padres June 29, 2008
 Get the The 5mug.
Get the The 5mug. by MissTake69 July 20, 2020
 Get the .5mug.
Get the .5mug. The shortest form of the hugely popular expression "Laughing Out Loud".  The evolution from "Laughing Out Loud" to the expression "5" is as shown here:
1. Laughing Out Loud - (Original)
2. lol - (Original -> Acronym)
3. 101 - (Acronym -> 1337 Acronym)
4. 5 - (Binary -> Decimal)
By using "5" instead of "lol", 1337 typists save 66% of their time, thus the need for the expression "5".
Typically a situation that warrants a "5" is funnier than a situation in which "lol" will suffice.
1. Laughing Out Loud - (Original)
2. lol - (Original -> Acronym)
3. 101 - (Acronym -> 1337 Acronym)
4. 5 - (Binary -> Decimal)
By using "5" instead of "lol", 1337 typists save 66% of their time, thus the need for the expression "5".
Typically a situation that warrants a "5" is funnier than a situation in which "lol" will suffice.
by Mr11 July 2, 2007
 Get the 5mug.
Get the 5mug. by Mookie January 14, 2005
 Get the $5mug.
Get the $5mug. by natie-poo August 26, 2007
 Get the #5mug.
Get the #5mug. Pretty good, not 0 but not 10 either.
by your friENT November 18, 2011
 Get the [5]mug.
Get the [5]mug.